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EARNINGS PER SHARE ATTRIBUTABLE TO INTERNATIONAL PAPER COMPANY COMMON SHAREHOLDERS (Tables)
 9 Months Ended
Sep. 30, 2016
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
A reconciliation of the amounts included in the computation of earnings (loss) per common share, and diluted earnings (loss) per common share is as follows: 
 
Three Months Ended
September 30,
 
Nine Months Ended
September 30,
In millions, except per share amounts
2016
 
2015
 
2016
 
2015
Earnings (loss) from continuing operations
$
312

 
$
220

 
$
691

 
$
760

Effect of dilutive securities
—

 
—

 
—

 
—

Earnings (loss) from continuing operations – assuming dilution
$
312

 
$
220

 
$
691

 
$
760

Average common shares outstanding
411.2

 
415.1

 
411.0

 
418.7

Effect of dilutive securities
 
 
 
 
 
 
 
Restricted stock performance share plan
4.1

 
2.4

 
4.5

 
3.2

Average common shares outstanding – assuming dilution
415.3

 
417.5

 
415.5

 
421.9

Basic earnings (loss) from continuing operations per common share
$
0.76

 
$
0.53

 
$
1.68

 
$
1.81

Diluted earnings (loss) from continuing operations per common share
$
0.75

 
$
0.53

 
$
1.66

 
$
1.80